CVE-2023-42344

HIGH

Published May 8, 2026 Modified May 8, 2026 CWE-611

Description

Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS — Exploit Prediction

0.1367

Probability of exploitation

0.94%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-611 CWE-611

References

Other References

https://labs.watchtowr.com/xxe-you-can-depend-on-me-opencms/ https://github.com/projectdiscovery/nuclei-templates/issues/8864

Frequently Asked Questions

What is CVE-2023-42344? +

Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2023-42344? +

CVE-2023-42344 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.1367, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2023-42344? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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